/*

 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include "jni.h"

#include "nsk_tools.h"

#ifdef __cplusplus

extern "C" {

#endif

#ifndef JNI_ENV_PTR

#ifdef __cplusplus

#define JNI_ENV_ARG_2(x, y) y

#define JNI_ENV_ARG_3(x, y, z) y, z

#define JNI_ENV_PTR(x) x

#else

#define JNI_ENV_ARG_2(x,y) x, y

#define JNI_ENV_ARG_3(x, y, z) x, y, z

#define JNI_ENV_ARG_4(x, y, z, a) x, y, z, a

#define JNI_ENV_PTR(x) (*x)

#endif

#endif

JNIEXPORT void JNICALL

Java_nsk_share_locks_JNIMonitorLocker_doLock(JNIEnv *env, jobject thisObject)

{

/*

This method executes JNI analog for following Java code:

        JNI_MonitorEnter(this);

        step1.unlockAll();

        step2.waitFor();

        readyWicket.unlock();

        inner.lock();

        JNI_MonitorExit(this);

*/

        jint success;

        jfieldID field;

        jclass thisObjectClass;

        // fields 'step1' and 'step2'

        jobject wicketObject;

        // class for fields 'step1', 'step2', 'readyWicket'

        jclass wicketClass;

        // field 'inner'

        jobject innerObject;

        // class for field 'inner'

        jclass deadlockLockerClass;

        success = JNI_ENV_PTR(env)->MonitorEnter(JNI_ENV_ARG_2(env, thisObject));

        if(success != 0)

        {

                NSK_COMPLAIN1("MonitorEnter return non-zero: %d\n", success);

                JNI_ENV_PTR(env)->ThrowNew(JNI_ENV_ARG_3(env, JNI_ENV_PTR(env)->FindClass(JNI_ENV_ARG_2(env, "nsk/share/TestJNIError")), "MonitorEnter return non-zero"));

        }

        thisObjectClass = JNI_ENV_PTR(env)->GetObjectClass(JNI_ENV_ARG_2(env, thisObject));

        // step1.unlockAll()

        field = JNI_ENV_PTR(env)->GetFieldID(JNI_ENV_ARG_4(env, thisObjectClass, "step1", "Lnsk/share/Wicket;"));

        wicketObject = JNI_ENV_PTR(env)->GetObjectField(JNI_ENV_ARG_3(env, thisObject, field));

        wicketClass = JNI_ENV_PTR(env)->GetObjectClass(JNI_ENV_ARG_2(env, wicketObject));

        JNI_ENV_PTR(env)->CallVoidMethod(JNI_ENV_ARG_3(env, wicketObject, JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG_4(env, wicketClass, "unlockAll", "()V"))));

        // step2.waitFor()

        field = JNI_ENV_PTR(env)->GetFieldID(JNI_ENV_ARG_4(env, thisObjectClass, "step2", "Lnsk/share/Wicket;"));

        wicketObject = JNI_ENV_PTR(env)->GetObjectField(JNI_ENV_ARG_3(env, thisObject, field));

        JNI_ENV_PTR(env)->CallVoidMethod(JNI_ENV_ARG_3(env, wicketObject, JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG_4(env, wicketClass, "waitFor", "()V"))));

        // readyWicket.unlock()

        field = JNI_ENV_PTR(env)->GetFieldID(JNI_ENV_ARG_4(env, thisObjectClass, "readyWicket", "Lnsk/share/Wicket;"));

        wicketObject = JNI_ENV_PTR(env)->GetObjectField(JNI_ENV_ARG_3(env, thisObject, field));

        JNI_ENV_PTR(env)->CallVoidMethod(JNI_ENV_ARG_3(env, wicketObject, JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG_4(env, wicketClass, "unlock", "()V"))));

        // inner.lock()

        field = JNI_ENV_PTR(env)->GetFieldID(JNI_ENV_ARG_4(env, thisObjectClass, "inner", "Lnsk/share/locks/DeadlockLocker;"));

        innerObject = JNI_ENV_PTR(env)->GetObjectField(JNI_ENV_ARG_3(env, thisObject, field));

        deadlockLockerClass = JNI_ENV_PTR(env)->GetObjectClass(JNI_ENV_ARG_2(env, innerObject));

        JNI_ENV_PTR(env)->CallVoidMethod(JNI_ENV_ARG_3(env, innerObject, JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG_4(env, deadlockLockerClass, "lock", "()V"))));

        success = JNI_ENV_PTR(env)->MonitorExit(JNI_ENV_ARG_2(env, thisObject));

        if(success != 0)

        {

                NSK_COMPLAIN1("MonitorExit return non-zero: %d\n", success);

                JNI_ENV_PTR(env)->ThrowNew(JNI_ENV_ARG_3(env, JNI_ENV_PTR(env)->FindClass(JNI_ENV_ARG_2(env, "nsk/share/TestJNIError")), "MonitorExit return non-zero"));

        }

}

#ifdef __cplusplus

}

#endif